1.

On the horizontal surface of a truck (m = 0.6), a block of mass 1 kg is placed.  If the truck is accelerating at the rate of 5m/sec2 then frictional force on the block will be [CBSE PMT 2001]          

A.                   5 N            
B.             6 N
C.             5.88 N
D.             8 N
Answer» B.             6 N


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